Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number J52-3720 found under Gasket by Atmost Refrigeration Company Inc. The National Stock Number assigned to this part is 5330014419352, and the Federal Supply Class is 5330 Packing And Gasket Materials. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like J52-3720.